def month_name(self, locale=None):
"""
Return the month names of the DateTimeIndex with specified locale.
Parameters
----------
locale : string, default None (English locale)
locale determining the language in which to return the month name
Returns
-------
month_names : Index
Index of month names
.. versionadded:: 0.23.0
"""
if self.tz is not None and self.tz is not utc:
values = self._local_timestamps()
else:
values = self.asi8
result = fields.get_date_name_field(values,
'month_name',
locale=locale)
result = self._maybe_mask_results(result)
return result
def day_name(self, locale=None):
"""
Return the day names of the DateTimeIndex with specified locale.
Parameters
----------
locale : string, default None (English locale)
locale determining the language in which to return the day name
Returns
-------
month_names : Index
Index of day names
.. versionadded:: 0.23.0
"""
if self.tz is not None and self.tz is not utc:
values = self._local_timestamps()
else:
values = self.asi8
result = fields.get_date_name_field(values, 'day_name',
locale=locale)
result = self._maybe_mask_results(result)
return result
def f(self):
values = self.asi8
if self.tz is not None:
if self.tz is not utc:
values = self._local_timestamps()
if field in self._bool_ops:
if field.endswith(('start', 'end')):
freq = self.freq
month_kw = 12
if freq:
kwds = freq.kwds
month_kw = kwds.get('startingMonth', kwds.get('month', 12))
result = fields.get_start_end_field(values, field,
self.freqstr, month_kw)
else:
result = fields.get_date_field(values, field)
# these return a boolean by-definition
return result
if field in self._object_ops:
result = fields.get_date_name_field(values, field)
result = self._maybe_mask_results(result)
else:
result = fields.get_date_field(values, field)
result = self._maybe_mask_results(result, convert='float64')
return result
def f(self):
values = self.asi8
if self.tz is not None:
if self.tz is not utc:
values = self._local_timestamps()
if field in self._bool_ops:
if field.endswith(('start', 'end')):
freq = self.freq
month_kw = 12
if freq:
kwds = freq.kwds
month_kw = kwds.get('startingMonth', kwds.get('month', 12))
result = fields.get_start_end_field(values, field,
self.freqstr, month_kw)
else:
result = fields.get_date_field(values, field)
# these return a boolean by-definition
return result
if field in self._object_ops:
result = fields.get_date_name_field(values, field)
result = self._maybe_mask_results(result)
else:
result = fields.get_date_field(values, field)
result = self._maybe_mask_results(result, convert='float64')
return result
def day_name(self, locale=None):
"""
Return the day names of the DateTimeIndex with specified locale.
.. versionadded:: 0.23.0
Parameters
----------
locale : str, optional
Locale determining the language in which to return the day name.
Default is English locale.
Returns
-------
Index
Index of day names.
Examples
--------
>>> idx = pd.DatetimeIndex(start='2018-01-01', freq='D', periods=3)
>>> idx
DatetimeIndex(['2018-01-01', '2018-01-02', '2018-01-03'],
dtype='datetime64[ns]', freq='D')
>>> idx.day_name()
Index(['Monday', 'Tuesday', 'Wednesday'], dtype='object')
"""
if self.tz is not None and self.tz is not utc:
values = self._local_timestamps()
else:
values = self.asi8
result = fields.get_date_name_field(values, 'day_name',
locale=locale)
result = self._maybe_mask_results(result)
return result
def day_name(self, locale=None):
"""
Return the day names of the DateTimeIndex with specified locale.
.. versionadded:: 0.23.0
Parameters
----------
locale : str, optional
Locale determining the language in which to return the day name.
Default is English locale.
Returns
-------
Index
Index of day names.
Examples
--------
>>> idx = pd.DatetimeIndex(start='2018-01-01', freq='D', periods=3)
>>> idx
DatetimeIndex(['2018-01-01', '2018-01-02', '2018-01-03'],
dtype='datetime64[ns]', freq='D')
>>> idx.day_name()
Index(['Monday', 'Tuesday', 'Wednesday'], dtype='object')
"""
if self.tz is not None and self.tz is not utc:
values = self._local_timestamps()
else:
values = self.asi8
result = fields.get_date_name_field(values, 'day_name', locale=locale)
result = self._maybe_mask_results(result)
return result
def test_get_date_name_field_readonly(dtindex):
# https://github.com/vaexio/vaex/issues/357
# fields functions shouldn't raise when we pass read-only data
result = fields.get_date_name_field(dtindex, "month_name")
expected = np.array(["January", "February", "March", "April", "May"],
dtype=object)
tm.assert_numpy_array_equal(result, expected)
def test_fields_readonly():
# https://github.com/vaexio/vaex/issues/357
# fields functions shouldn't raise when we pass read-only data
dtindex = np.arange(5, dtype=np.int64) * 10**9 * 3600 * 24 * 32
dtindex.flags.writeable = False
result = fields.get_date_name_field(dtindex, "month_name")
expected = np.array(["January", "February", "March", "April", "May"],
dtype=object)
tm.assert_numpy_array_equal(result, expected)
result = fields.get_date_field(dtindex, "Y")
expected = np.array([1970, 1970, 1970, 1970, 1970], dtype=np.int32)
tm.assert_numpy_array_equal(result, expected)
result = fields.get_start_end_field(dtindex, "is_month_start", None)
expected = np.array([True, False, False, False, False], dtype=np.bool_)
tm.assert_numpy_array_equal(result, expected)
# treat dtindex as timedeltas for this next one
result = fields.get_timedelta_field(dtindex, "days")
expected = np.arange(5, dtype=np.int32) * 32
tm.assert_numpy_array_equal(result, expected)
